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WO2013013527A1 - Station de base et son procédé d'économie d'énergie - Google Patents

Station de base et son procédé d'économie d'énergie Download PDF

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Publication number
WO2013013527A1
WO2013013527A1 PCT/CN2012/075341 CN2012075341W WO2013013527A1 WO 2013013527 A1 WO2013013527 A1 WO 2013013527A1 CN 2012075341 W CN2012075341 W CN 2012075341W WO 2013013527 A1 WO2013013527 A1 WO 2013013527A1
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WO
WIPO (PCT)
Prior art keywords
period
processing unit
power
base station
power supply
Prior art date
Application number
PCT/CN2012/075341
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English (en)
Chinese (zh)
Inventor
李立志
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2013013527A1 publication Critical patent/WO2013013527A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to mobile communication technologies, and in particular, to a method and a base station for power saving of a base station.
  • the signal transmission is reduced in a part of the time slot in which the base station normally transmits the frame, thereby achieving the purpose of energy saving. 2. Setting a function module to detect the service traffic of the base station, so that the base station can switch between the busy state and the idle state, thereby achieving energy saving. Purpose, the focus is on the detection of busy and idle state;
  • the energy is controlled by the operation and maintenance center.
  • the base station is only responsible for collecting data.
  • the energy saving decision is made by the centralized control center, and the base station completes the energy saving operation according to the control instruction.
  • the base station system is divided into several parts, some of which (or called auxiliary units) are turned off at certain time intervals (when no service data is processed), thereby achieving energy saving purposes;
  • the base station detects the number of users, and when the user has few users, actively switches the user to other base stations, so that the base station can be turned off to achieve energy saving.
  • the purpose of the embodiments of the present invention is to provide a method for saving power of a base station and a base station, so that the base station system can still more effectively meet basic communication needs in the case of lack of power supply.
  • an embodiment of the present invention provides a method for saving energy of a base station, including: when determining that a power saving condition is met, the base station determines, according to the detected input voltage, an adjustment period including a power saving period and a power supply period, and then Powering off during the power saving period, and powering up during the power supply period; wherein, the power saving condition includes: the detected input voltage value is lower than a preset first threshold, or is detected at The change value of the input voltage exceeds a preset second threshold value for a fixed period of time; the lower the detected input voltage is, the larger the power saving period value determined according to the input voltage is.
  • the above methods also include:
  • the base station determines that the power saving condition is still satisfied according to the input voltage detected in the adjustment period, and then re-in accordance with the input voltage detected in the adjustment period.
  • the power saving period and the power supply period in the next adjustment period are determined, and then the power is turned off during the re-determined power saving period, and the power is turned on during the re-determined power supply period.
  • the above methods also include:
  • the base station determines to satisfy the recovery condition according to the input voltage detected in the adjustment period, and resumes the continuous power supply;
  • the recovery condition includes: the detected input voltage value is higher than the preset first threshold, or detecting that the change value of the input voltage does not exceed a preset position within a fixed duration Said the second threshold.
  • the step of the base station operating in the power supply period or in the re-determined power supply period includes:
  • the base station resumes continuous supply during the power supply period or the re-determined power supply period Electricity, and only processes data related to higher priority services or users.
  • the present invention also provides a base station, including a node detection control unit, a common processing unit, a downlink processing unit, an uplink processing unit, and a network data processing unit, where:
  • the power saving monitoring control unit is configured to: connect to a power source of the base station, detect an input voltage of the power source; when it is determined that a power saving condition is satisfied, send a power saving message to a common processing unit; and receive the After the response message sent by the common processing unit, determining an adjustment period including the power saving period and the power supply period according to the detected input voltage, and then powering off during the power saving period, and turning on the power supply period
  • the power saving condition includes: the detected input voltage value is lower than a preset first threshold, or the detected value of the input voltage exceeds a preset second width within a fixed duration a value; a lower the detected input voltage, a larger value of the power saving period determined according to the input voltage;
  • the common processing unit is configured to: send the received power saving message to the downlink processing unit, the uplink processing unit, and the network data processing unit; and send the downlink processing unit, the uplink processing Sending, by the unit and the network data processing unit, a response message to the power saving monitoring control unit;
  • the downlink processing unit is configured to: after receiving the power saving message, reply a response message; the uplink processing unit is configured to: after receiving the power saving message, reply a response message; The processing unit is configured to: after receiving the power saving message, reply a response message;
  • the power saving monitoring control unit is further configured to: when it is determined that the power saving condition is still satisfied according to the input voltage detected in the adjustment period, after an adjustment period ends, according to the adjustment period
  • the detected input voltage re-determines a power saving period and a power supply period in a next adjustment period, and then powers off during the re-determined power saving period, and turns on the power source during the re-determined power supply period .
  • the base station further includes a downlink signal transmission processing unit, where:
  • the downlink processing unit is further configured to: process only data related to a service or user with a higher priority in the power supply cycle or the re-determined power supply cycle, and then process the processed data Sending to the downlink signal transmission processing unit;
  • the downlink signal transmission processing unit is configured to: send the received downlink data through the downlink.
  • the downlink processing unit is further configured to: in the power supply period or the re-determined power supply period, turn on the downlink signal transmission processing unit only when there is data to perform downlink transmission.
  • the above base station further includes:
  • an uplink signal monitoring receiving unit configured to: monitor and receive an uplink signal whose power exceeds a preset power threshold during the power supply period or the re-determined power supply period, and send the received uplink signal Giving the uplink processing unit;
  • the uplink processing unit is further configured to: process the received uplink signal, and process the unit.
  • the uplink signal monitoring receiving unit is further configured to: operate at intervals of a period of time during the power supply period or the re-determined power supply period.
  • the embodiments of the present invention enable the base station system to not only have the power saving capability, but also ensure that the base station system can continuously provide the most important service monthly service in the longest time interval in the case of insufficient power supply.
  • FIG. 1 is a structural diagram of a base station according to an embodiment of the present invention.
  • 2 is a battery voltage threshold in an embodiment of the present invention.
  • the method for saving power of the base station includes:
  • the base station determines an adjustment period including a power saving period and a power supply period according to the current input voltage, and then powers off during the power saving period, and powers up during the power supply period; wherein, the foregoing section
  • the electrical condition includes: detecting that the input voltage value is lower than a preset first threshold, or detecting that the change value of the input voltage exceeds a preset second threshold for a fixed period of time; whenever the adjustment period is over, If the base station determines that the power saving condition is still satisfied according to the input voltage detected in the adjustment period, the power saving period and the power supply period in the next adjustment period are re-determined according to the voltage detected in the adjustment period, and then The power is cut off within the re-determined power-saving cycle, and the power-on operation is performed during the re-determined power supply cycle; wherein, the lower the detected input voltage is, the larger the power-saving period value determined according to the voltage is.
  • the values of the power supply cycles are the same during each adjustment period
  • the base station determines that the recovery condition is satisfied based on the voltage detected during the adjustment period, and resumes the continuous power supply.
  • the recovery condition includes: detecting that the input voltage value is higher than a preset first threshold, or detecting that the change value of the input voltage does not exceed a preset second threshold for a fixed period of time.
  • the base station system is composed of a power saving monitoring control unit, a network data processing unit, a downlink processing unit, a common processing unit, an uplink processing unit, a downlink signal transmission processing unit, and an uplink signal monitoring receiving unit.
  • Power saving monitoring and control unit This unit is connected to the system power supply. It can continuously detect the power supply voltage and control the power consumption or power saving of the base station according to the detection result and the current processing status of the system, thus controlling its power consumption.
  • System power can come from a power network, a battery, or both.
  • this unit For the power network power supply, if the voltage is stable or there is jitter but the system is still operating normally and safely, this unit does not perform any action. If the voltage is too low (that is, the power supply voltage is lower than the preset third threshold) or the jitter is too large (that is, the amount of change in the power supply voltage detected over a period of time is greater than the preset fourth threshold), the base station is no longer safe. If it is running, the unit sends a message that interrupts the power supply, and sends it to the uplink processing unit and the downlink processing unit via the common processing unit.
  • the operation and maintenance center will report the power supply abnormality alarm and interrupt the system power supply, that is, the power supply current will not be transmitted to each other unit in the base station.
  • the base station enters a power down state.
  • the unit turns on the electrical connection between the system power supply and each unit in the base station, that is, The base station resumes power supply and reports the recovery of the power supply abnormal alarm to the operation and maintenance center.
  • the system enters a normal state.
  • T-waiting and T-checking are solidified in the system or configured by configuration.
  • the battery is usually charged with wind or solar energy. When these natural causes cause these energy shortages, the battery needs to be used to ensure it is used for as long as possible.
  • the unit will be based on the voltage detected during the T-rechecking period after a timing interval (T-rechecking). If it is determined that the power saving condition is satisfied, the power saving message is sent again.
  • the value of the power saving period and the power supply period in an adjustment period is determined as a set of power saving data according to the current voltage, wherein the power supply period Indicates that the system is powered normally at this time.
  • the power-saving period indicates that the system is powered off for a long time.
  • the set of power saving data is sent to the uplink processing unit, the downlink processing unit, and the uplink signal monitoring receiving unit via the common processing unit. Thereafter, the system is powered off during the power saving period, and the base station enters a power saving state.
  • the power-saving monitoring control unit detects that the battery voltage continues to decrease during the current adjustment period, after the end of the adjustment period, the power-saving period value is re-determined, that is, the power-saving period is increased, and vice versa. Reduced. And the power-off processing is performed according to the re-determined power-saving period value in the next adjustment period. If the power saving period changes, it is sent to the uplink processing unit, the downlink processing unit, and the uplink signal monitoring receiving unit through the common processing unit through the power saving update message. Then, the unit performs power-off processing according to the re-determined power-saving period value in the next adjustment period.
  • the unit After detecting that the voltage is higher than Th-normal again, and after a period of time (T-checking), the unit sends a power-saving recovery message, which is sent to the uplink processing unit, the downlink processing unit, and the uplink signal monitoring and receiving via the common processing unit. Unit, restore power at the same time. The system then enters normal operation.
  • this unit When it is detected that the voltage is lower than the third threshold Th-saving, this unit will send an interrupt power supply to the feedback. After a timing interval (T-waiting), the operation and maintenance center will report the power supply abnormal alarm and interrupt the system power supply. . The system enters the shutdown state.
  • this unit restores system power.
  • the unit sends a set of default power-saving data (including the default power-on period value, the default power-saving period value), which is sent to the uplink processing unit, the downlink processing unit, and the uplink through the common processing unit.
  • Signal monitoring receiving unit After that, the system enters the power-saving state according to the value of the power-saving data, and reports the recovery of the power-off abnormal alarm to the operation and maintenance center.
  • the default power saving data is solidified in the system or configured through configuration. The processing of the power saving state, as described above, is not repeated here.
  • Th-normal, Th-saving 3 ⁇ 4 T-rechecking curing system or set by the configuration
  • the unit continuously checks the power supply voltage and battery voltage of the power network. Then according to the test results, can be divided into several types of situations, the specific treatment is as follows:
  • the power network is powered normally, using the power network power
  • Ii The power supply of the power network changes from normal to abnormal, and the battery power is selected, and the post-processing process is the same as 2);
  • Iii The power supply of the power network continues to be abnormal.
  • the battery power is selected.
  • the process is the same as 2).
  • iv The power supply of the power network returns to normal and continues to be used for a period of time (T-checking). Power network.
  • the unit is equipped with a charging and discharging module.
  • the charging and discharging module When the base station system is powered normally, the charging and discharging module is charged, and the unit is powered by the system power supply. When the system is not powered properly, the charging and discharging module will discharge to ensure that the unit can work normally under this condition, thus ensuring that the unit can correctly detect and judge the system voltage under any conditions.
  • the network data processing unit is responsible for receiving and transmitting data exchanged between the base station and the network side network element. After the processing of the unit, the network side data is sent to the downlink processing unit via the common processing unit; after the processing by the uplink processing unit is completed, the air interface data is sent to the unit via the common processing unit, and then sent to the corresponding network side through the unit.
  • Network element For example, the data transmission and reception of the R6/R8 interface in the WiMAX (Worldwide Interoperability for Microwave Access) base station system; or the data transmission and reception of the X2/S1 interface in the LTE (Long Term Evolution) base station system. This unit does not participate in the energy saving decision of the base station system. The unit will stop working when the base station system is in the power-saving state or the shutdown state.
  • the downlink processing unit is responsible for completing the processing of the downlink service, the allocation of the air interface resources, and the reply or initiation of various requests of the terminal user.
  • the downlink data is sent to the end user via the downlink signal transmission processing unit.
  • Downlink data is usually composed of broadcast data, multicast data, and unicast data. Broadcast data may need to be sent periodically; multicast and unicast data need to be sent when the corresponding end user has services or data.
  • On-demand allocation refers to the amount of data to be transmitted according to the needs of the end user. Or the amount of resources requested by the user to allocate resources to the end user.
  • it is generally determined whether to send a message requesting to extend the power saving period according to the amount of data to be transmitted; in the uplink direction, it is generally determined according to the number of requests whether to send a message requesting to extend the power saving period. If the number of requests is reduced or the amount of data to be transmitted is reduced, among these end users and various service types, some end users or certain service types have higher priority and should be prioritized during the power supply cycle. . For example, emergency call services should be sent with the highest priority, and gold users have higher priority than others.
  • the power saving monitoring control unit When receiving the interrupted power supply message sent by the power saving monitoring control unit and sent to the unit via the common processing unit, it indicates that the power supply of the base station system is insufficient, and will be quickly shut down. The unit completes the storage of necessary data. After the release of the end user resources, etc., the power saving monitoring control unit returns a response message via the common processing unit while waiting for the system power to be turned off.
  • the power saving monitoring control unit When receiving the power saving message sent by the power saving monitoring control unit and sent to the unit via the common processing unit, it indicates that the base station has insufficient power supply and must use power saving.
  • the unit sends a response message to the node monitoring and control unit to enter a power saving state.
  • the unit When receiving the power-saving recovery message, the unit does not process, and only records the status of the base station system as a normal state.
  • the second-class power-saving state if a power-saving message is received, it will immediately become a class of power-saving state, and at the same time reply the feedback message, suggesting that the system delays entering the power-saving state.
  • the status of the base station system recorded by the unit is periodically detected. If the system status of the base station is normal, the unit enters three types of power saving states after a period of time (T-checking).
  • Table 1 Status list of downlink processing units One type of power-saving processing emergency call service, broadcasting service handling emergency call service, broadcasting industry
  • the services of the service, gold and silver users are normally processed. All services are in the first, second and third power-saving states.
  • the unit completes the processing of the data and will immediately close the downlink signal transmission after the downlink signal transmission processing unit completes the transmission. Processing unit. It will not be turned on until the next transmission. Under normal conditions, the downlink signal transmission processing unit will always start normally.
  • the downlink signal transmission processing unit is configured to complete transmission and transmission of downlink data after receiving the processing result of the downlink processing unit. This unit does not participate in the energy saving decision of the base station system. The unit will stop working when the base station system is in the power-saving state or the shutdown state.
  • the public processing unit mainly completes the storage and processing of public data, messages, and events.
  • the message interaction, data storage and reading, and event processing between the different units of the network data processing unit, the uplink processing unit, the downlink processing unit, the power saving monitoring control unit, and the uplink signal monitoring receiving unit are all completed by the unit.
  • This unit does not participate in the energy saving decision of the base station system. The unit will stop working in the power-saving state or the shutdown state of the base station system.
  • An uplink processing unit configured to complete receiving and processing uplink data. If the number of active terminals in the system is relatively large, or the amount of uplink data is relatively large, the base station system needs to consume more time and resources to process the uplink data. On the contrary, the processing of the uplink data requires less time and resources. When the base station is running low, upstream data processing should be done with minimal time and resource consumption.
  • There are mainly three types of data processed by the uplink one is the service data of the terminal user, the other is the uplink resource request of the terminal user, and the third is the control message between the terminal user and the base station. Business The data is finally sent to the network side network element through the network data processing unit.
  • the uplink resource request of the terminal user is sent to the downlink processing unit by the public processing unit, and the downlink processing unit determines the quantity available for allocation according to the status of the terminal user, the available resources, and the user information, and the allocation result is finally sent to the terminal user.
  • the control message is processed by the uplink processing unit, and the processing result is sent to the downlink processing unit via the common processing unit, and finally sent to the terminal user.
  • the power saving monitoring control unit When receiving the interrupted power supply message sent by the power saving monitoring control unit and sent to the unit via the common processing unit, it indicates that the power supply of the base station system is insufficient, and will be shut down very quickly, and the unit completes the storage of necessary data. After the release of the end user resources, the power saving monitoring control unit will reply with a response message while waiting for the power to be turned off.
  • the unit When receiving the power saving message sent by the power saving monitoring control unit to the unit via the common processing unit, if the unit is not currently in the power saving state, it will enter the power saving state and simultaneously reply the response message, suggesting that the base station system Delayed to enter the power-saving state; The unit is currently in the power-saving state, will reply the response message, accept the base station system to enter the power-saving state.
  • the unit maintains two working states: normal state, power saving state, and the specific processing procedure is as follows:
  • the unit When in the power-saving state, the unit will stop working in the power supply cycle except for the following two conditions.
  • the uplink signal monitoring receiving unit detects a legal signal, and starts the unit to work normally in a time interval (T-working), at which time the uplink signal monitoring receiving unit is turned off, and the uplink receiving processing returns to a normal state; After the interval, the uplink signal monitoring receiving unit will be turned on again.
  • the downlink processing unit sends a message to the unit to receive uplink data in the next frame period according to the air interface resource allocation result, and the unit will close the uplink signal monitoring receiving unit before the start of the next frame period, and the uplink receiving processing is resumed.
  • the uplink signal detecting and receiving unit It is in a normal state; after the end of the next frame period, the uplink signal detecting and receiving unit is turned on again. If the power saving message is received in the power saving state, the response message will be directly returned, and the base station system is accepted to enter the power saving state. If the power saving recovery message is received, the unit returns to the normal state, the uplink signal monitoring receiving unit is turned off, and the uplink receiving processing returns to the normal state. T-working is solidified in the system or configured by configuration.
  • the uplink signal monitoring receiving unit includes two functions: uplink signal detection and uplink signal reception.
  • the unit will stop working during the power-saving cycle of the power-saving state of the base station system or during the shutdown state.
  • the uplink signal detection function is turned off, and the uplink signal receiving function works normally.
  • the detection function of the uplink signal detecting and receiving unit is turned on, and the uplink signal is received only at a small interval, if the detected signal power exceeds a certain width.
  • the value (Th-signal) will trigger the uplink signal receiving function to work normally and notify the upstream processing unit.
  • the uplink signal detection function is turned off, and the uplink signal receiving function works normally.
  • T-working the upstream processing unit will turn on the upstream signal detection function again.
  • the uplink signal monitoring receiving unit is turned off again.
  • Th-signal is solidified in the system or configured by configuration.
  • the main functions of the operation and maintenance center are to maintain, operate, monitor and diagnose the base station system, usually placed in the operator's equipment room.
  • the operation and maintenance center and the base station system complete the information interaction through the network. For example, when the operation and maintenance center receives an abnormal power alarm, the operator can observe the abnormality. When the alarm is restored, the base station system has returned to normal operation.
  • the embodiments of the present invention enable the base station system to not only have the power saving capability, but also ensure that the base station system can continuously provide the most important service monthly service in the longest time interval in the case of insufficient power supply.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur une station de base et son procédé d'économie d'énergie, la station de base comprenant : une unité de surveillance et de commande d'économie d'énergie, une unité de traitement commun, une unité de traitement de liaison descendante, une unité de traitement de liaison montante et une unité de traitement de données de réseau ; le procédé comprenant les opérations suivantes : lorsqu'il est déterminé qu'une condition d'économie d'énergie est satisfaite, la station de base détermine une période d'ajustement comprenant une période d'économie d'énergie et une période d'alimentation électrique en fonction d'une tension d'entrée détectée, et coupe ensuite l'alimentation durant la période d'économie d'énergie et active l'alimentation pour qu'elle fonctionne durant la période d'alimentation électrique. La condition d'économie d'énergie est que : la valeur de tension d'entrée détectée est inférieure à une première valeur seuil préréglée, ou la variation de la valeur de tension d'entrée détectée durant une période de temps fixe dépasse une seconde valeur seuil préréglée. Plus la tension d'entrée détectée est faible, plus la valeur de période d'économie d'énergie déterminée en fonction de la tension d'entrée est grande. Le procédé et la station de base non seulement permettent à un système de station de base d'économiser l'énergie, mais en outre assurent que le système de station de base fournit d'une manière cohérente le service d'affaires le plus important pendant la plus longue période de temps dans des circonstances d'alimentation électrique insuffisante.
PCT/CN2012/075341 2011-07-26 2012-05-11 Station de base et son procédé d'économie d'énergie WO2013013527A1 (fr)

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